The following table shows the relationship of various RJ plugs to the Digi RJ-45 10-pin jack. The Digi 10-pin jack can accept any of the listed plug types. The wiring of each plug type corresponds to support of specific capabilities such as software handshaking, hardware handshaking, and the Digi ALTPIN feature.
| Digi 10-Pin Jack |
Signal Name | RJ-45 10-Pin Plug |
RJ-45 8-Pin Plug |
RJ-11 6-Pin Plug |
RJ-11 4-Pin Plug |
|---|---|---|---|---|---|
| 1 | RI | 1 | |||
| 2 | DSR (DCD*) | 2 | 1 | ||
| 3 | RTS | 3 | 2 | 1 | |
| 4 | GND | 4 | 3 | 2 | 1 |
| 5 | TxD | 5 | 4 | 3 | 2 |
| 6 | RxD | 6 | 5 | 4 | 3 |
| 7 | SG | 7 | 6 | 5 | 4 |
| 8 | CTS | 8 | 7 | 6 | |
| 9 | DTR | 9 | 8 | ||
| 10 | DCD (DSR*) | 10 |
*When ALTPIN is in effect.